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Add minetest.get_artificial_light and minetest.get_natural_light (#5680)

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Add more detailed light detection functions, a function to get the artificial light (torches) and a function to get the sunlight as seen by the player (you can specify timeofday).

Co-authored-by: rubenwardy <rw@rubenwardy.com>
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HybridDog 2020-10-06 20:49:46 +02:00 • committed by GitHub
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16
doc/lua_api.txt
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@ -4824,6 +4824,22 @@ Environment access
* `pos`: The position where to measure the light.
* `timeofday`: `nil` for current time, `0` for night, `0.5` for day
* Returns a number between `0` and `15` or `nil`
* `nil` is returned e.g. when the map isn't loaded at `pos`
* `minetest.get_natural_light(pos[, timeofday])`
* Figures out the sunlight (or moonlight) value at pos at the given time of
day.
* `pos`: The position of the node
* `timeofday`: `nil` for current time, `0` for night, `0.5` for day
* Returns a number between `0` and `15` or `nil`
* This function tests 203 nodes in the worst case, which happens very
unlikely
* `minetest.get_artificial_light(param1)`
* Calculates the artificial light (light from e.g. torches) value from the
`param1` value.
* `param1`: The param1 value of a `paramtype = "light"` node.
* Returns a number between `0` and `15`
* Currently it's the same as `math.floor(param1 / 16)`, except that it
ensures compatibility.
* `minetest.place_node(pos, node)`
* Place node with the same effects that a player would cause
* `minetest.dig_node(pos)`